First Commit

externals/glslang/Test/spv.intrinsicsSpirvByReference.vert

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+#version 450 core
+
+#extension GL_EXT_spirv_intrinsics: enable
+
+spirv_instruction (set = "GLSL.std.450", id = 35) // modf
+float modf(float x, spirv_by_reference float i);
+
+layout(location = 0) in float floatIn;
+layout(location = 0) out vec2 vec2Out;
+layout(location = 1) out float floatOut;
+
+void func(spirv_by_reference float f)
+{
+    f = 0.5;
+}
+
+void main()
+{
+    vec2Out.x = modf(floatIn, vec2Out.y);
+    func(floatOut);
+}